we take regular readings for the Air Quality Index (AQI) and PM2.5 (the most dangerous particles) throughout the day at four set times, and more regularly where required. When readings exceed the healthy range, students’outdoor activities are limited or, during any high pollution, cancelled....
In science class, we dissect rats to better understand their anatomy and to see how organs work. We use rats because their systems are like humans’ systems, giving us a tangible sense of each part’s function and its connections to other parts. ...